21679684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21943}}^1$

素因数の和:21979

約数の個数: 24

約数和(自身を含む): 43010240

約数和(自身を除く): 21330556

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21943, 43886, 87772, 285259, 416917, 570518, 833834, 1141036, 1667668, 5419921, 10839842, 21679684]

約数ペア:

[(1, 21679684), (2, 10839842), (4, 5419921), (13, 1667668), (19, 1141036), (26, 833834), (38, 570518), (52, 416917), (76, 285259), (247, 87772), (494, 43886), (988, 21943)]